solgelteknik
Solgelteknik, or sol-gel processing, is a wet-chemical technique used for the preparation of inorganic and hybrid materials, typically in the form of gels. These gels are then processed to form solid materials, which can be in the form of powders, films, or bulk objects. The fundamental principle involves the hydrolysis and condensation of molecular precursors, usually metal alkoxides or metal salts, in a solvent.
The process begins with a sol, which is a colloidal suspension of solid particles in a liquid.
As the condensation proceeds, the viscosity of the liquid increases, and eventually, a gel is formed. A
The gel can then be dried, a crucial step that influences the final properties of the material.
Sol-gel processing offers advantages such as low processing temperatures, the ability to synthesize materials with high